Question:
Which of the following statements is incorrect?
Which of the following statements is incorrect?
Updated On: Jul 7, 2022
- A pair of equal and opposite forces with different lines of action is known as couple
- A couple produces rotation without translation
- When we open the lid of a bottle by turning it, our fingers apply a couple to the lid
- Moment of a couple depends on the point about which we take the moment
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The Correct Option is D
Solution and Explanation
Answer (d) Moment of a couple depends on the point about which we take the moment
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Concepts Used:
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- The system of particles refers to the extended body which is considered a rigid body most of the time for simple or easy understanding. A rigid body is a body with a perfectly definite and unchangeable shape.
- The distance between the pair of particles in such a body does not replace or alter. Rotational motion can be described as the motion of a rigid body originates in such a manner that all of its particles move in a circle about an axis with a common angular velocity.
- The few common examples of rotational motion are the motion of the blade of a windmill and periodic motion.